Chapter 1. INTRODUCTION - TM-5-4120-274-150015

TM 5-4120-274-15

CHAPTER 1

INTRODUCTION

Section I. General

manual by the individual user is authorized and

1-1. Scope

encouraged. Prepare DA Form 2028 (Remmmend-

a. These instructions an published for the use

ed Changes to DA Publications) for this pur-

of personnel to whom the Redmanson model CV

pose by using pencil, pen, or typewriter, and for-

9 series air conditioning units are issued. They

ward direct to: Commanding General, U. S. Army

provide information on the operating and organ-

Mobility Equipment Command. ATTN: AMSME-

izational maintenance of the equipment. Also in-

MPD, 4300 Goodfellow Boulevard, St. Louis, Mo.

cluded are descriptions of main units and their

63120.

function in relationship to other components.

e. Report all equipment improvement recom-

b. Appendix A contains a list of publications

mendations as prescribed by TM 38-750.

applicable to this manual. Appendix B contains

the list of basic issue items authoriZed the opera-

1-2. Record and Report Forms

tor of this equipment and the list of maintenance

and operating supplies required for initial opera-

a. DA Forn 2258 (Depreservation Guide for

tion. Appendix C contains the maintenance alloca-

Vehicles and Equipment).

tion chart.

b. For other record and report forms applica-

c. Numbers in parenthesis following nomen-

ble to operator, crew, and organizational mainite-

clature callouts on illustration indicate quantity,

nance, refer to TM 38-750.

numbers preceding nomenclature callouts indi-

Note. Applicable forms, excluding standard Form 46

cate preferred maintenance sequence.

(United States Government Motor Vehicles Operator's

d. Direct reporting of errors, omissions, and

Identification Card) which is carried by the operator,

recommendations for improving this equipment

shall be kept in a canvas bag mounted on the equipment.

Section II. DESCRIPTION AND TABULATED DATA

the hermetically sealed compressor, condensing

13.Description

coil, condenser air intake opening, condenser air

a. General. The air conditioner (fig. 1-1, 1-2,

discharge opening, control panel, junction box,

and 1-3) is used primarily in van type enclosures

thermostatic switch, power receptacle connector,

for providing filtered, conditional, or heated air

condenser fan, fan motor, filter drier, suction and

as required to maintain service conditions neces-

discharge access fittings, solenoid valve, capaci-

sary for the efficient operation of eletronic

tors (models CV-9-1-15-60 and CV-9-130-

equipment and for the comfort of operating per-

60) and high pressure relief valve.

sonnel housed within the specified vans. It is a

c. Evaporator Section. The evaporator section,

completely self-contained, air cooled, electric mo-

located in the top of the unit, contains an evapo-

tor driven unit designed for continuous opera-

rator coil, evaporator fan, air conditioning filter,

tion with varying loads. It is equipped with in-

intake and discharge grilles, evaporator coil drain

ternal ducting to the low aide of the evaporator

pan, expansion valvs, electrical heaters, sight

fan so that ventilation air and air from the chemi-

glass, fan speed relay, hi and lo pressure switches,

cal and biological filter unit may be supplied by

solenoid valve, expansion valve, liquid line quench

the evaporator fan.

valves, hot gas bypass regulator valve, and a

damper to regulate the amount of outdoor air en-

b. Condensing Section. The condensing sec-

tering the air conditioner.

tion, located at the bottom of the unit. contains

1-1